Accounting machine



Nov. 30, 1943.

H. F. LANG 2,335,343

ACCOUNTING MACHINE Filed Dec. 30, 1938 7 Sheets-Sheet 1 .FIG. 1

Henry F. Lang Inventor His Attorney Nov. 30, 1943. H, LA 2,335,343

ACCOUNTING MACHINE Filed Dec. 30, 1938 '7 Sheets-Sheet 2 Hcnry 1. Lung7/" I \9 w \n s 2 5 Hi! dam M 1 H. F. LANG ACCOUNTING MACHINE Nov. 30,1943.

Filed Dec. 30, 1938 '7 Sheets-Sheet 5 SH 1 Q,

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ACCOUNTING MACHINE Filed Dec. 30, 1958 '7 Sheets-Sheet 4 m In M I M 111m 1 BO/ HI m ,303 T1 5,

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ACCOUNTING MACHINE Filed Dec. 30, 1938 7 Sheets-Sheet 5 FIG.1O FIG. 11

Honry F. Lang Inventor His Attorney WWW Nov. 30, 1943. H. F. LANG2,335,343

ACCOUNTING MACHINE Filed Dec. 50, 1938 '7 Sheets-Sheet 6 JOHN DUE i JOHN005 IN ACCOUNT WITH l CHECKS DEPOSIT rrsns BALANCE :mws BALANCE 250010.00 75.00 2 40.005 2 40.00 160.00 Y 15 120.000; 15 120.000 40.00500.00 1 340.003 1 340.00

gwomtoz Henry I". 1,311 y Nov. 30, 1943. H. F. LANG ACCOUNTING MACHINEFiled Dec. 30, 1938 7 Sheets-Sheet '7 Patented Nov. 30, 1943 UNITEDSTATES PATENT OFFICE 9Claims.

This invention relates to bookkeeping or accounting machines and thelike, and is more particularly concerned with totalizer controlmechanism associated with means for recording positive and negativedata.

In bookkeeeping or accounting machines having an add and subtracttotalizer consisting of a single pinion for each denominational order,the said totalizer is often passed through the zero position by havingmore subtracted therefrom than is added thereto, leaving on thetotalizer the complement of the true negative total. Mechanism hasheretofore been devised for converting such complement of the truenegative total so as to be available as the true negative total forprinting. Such operations require multiple machine cycles, at the end ofwhich the add and subtract totalizer may either be left in a clearedcondition or may contain the complement of the true negative totalstanding thereon at the commencement of the multiple-cycle operation,the former operation being termed a total taking of the overdraft andthe, latter operation termed a sub-total taking of the overdraft.

In keeping debtor-creditor accounts with a machine having an add andsubtract totalizer, it is often desirable to have a total of the numberof items, such as checks, bills, invoices, etc., in-- volved in thetransactions, which total is entered on a separate totalizer. Mechanismshave heretofore been devised to print along with totals of the add andsubtract totalizer, be they positive or negative, the positive total ofthe items involved in the transactions, but such mechanisms have notbeen capable, when there is an overdraft condition in the add andsubtract totalizer, of restoring the data to both the totalizers as isrequired for a sub-total taking operation.

Therefore it is the principal object of this invention to provide meansto take, in the same machine operation, the sub-total of an overdraft ofan add and subtract totalizer and a sub-total of an adding totalizer.

Another object of the invention is to provide 7 means whereby, in asub-total operation involving the printing of the true negative total ofan overdrawn add and subtract totalizer, there may be printed therewiththe sub-total of a separate adding totalizer.

Another object of the invention is to provide means whereby anaccounting machine may nrint in one operation both the true negativebalance of an overdrawn add and subtract totalizer and a positive totalof another totalizer after which the data is restored on saidtotalizers.

Applicants invention is shown embodied in the well known type ofaccounting machine illustrated and described in United States lettersPatent, No. 1,197,276, and No. 1,203,863, issued to Halcclm Ellis, andNo. 1,819,084, issued to Emil John Ens, and more especially in themachine described in the United States Patent No. 2,243,806, issued toLaurence N. Lehman on May 27, 1941, which machine is also described tinFrench Letters Patent, No. 821,762, issued to The National Cash RegisterCompany, August 30, 1937. Although applicant has shown the inventionembodied in the above type of machine, it may in principle be adaptedfor use in other types of machines. Applicant will describe theinvention as embodied in a machine adapted for bank customer accountsbut again the principle of the invention is not limited to the system ofbookkeeping used as an example, as the machine is flexible and adaptedin principle to serve for a I variety of accounting systems.

With these and incidental objects in view, the invention includescertain novel features of construction and combinations of parts, theessential elements of which are set forth in appended claims and apreferred form or embodiment of which is hereinafter described withreference to the drawings which accompany and form a part of thisspecification.

In the drawings:

Fig. 1 is a fragmentary vertical section through the machine from frontto rear to the right of the first item key bank looking towards theleft. L Fig. 2 is a perspective view of a portion of the item totalizerengaging controls for sub-total overdraft operations, with the frame ofthe machine shown in dot-and-dash lines in relation thereto.

Fig. 3 is a fragmentary vertical section through the machine from frontto rear to the left of the totalizer selecting and engaging mechanismlooking toward the right.

Fig. 4 is a detail of part of the item totalizer selecting and engagingmechanism.

Fig. 5 is a plan view of a portion of the totalizer selecting andengaging mechanism shown in Figs. 3 and 4.

Fig. 6 is a front elevation of the totalizer selecting and engagingmechanism shown in Figs. 3, 4, and 5.

Fig. 7 is a detail of the mechanism for blocking the movement of thedifferential racks associated with the item key banks on certain machineoperations.

left.

; or appended parts.

' bank zero stop pawls and detents and the highest order amount key bankzero stop pawl and detent and the associated mechanisms.

Fig. 13 is a detail of the mechanism for actuating and controlling thecounter for counting the number of machine operations.

Fig. 14 is a representation of the keyboard arrangement.

Fig. 15 is a facsimile of part. of a typical work sheet produced by themachine.

Fig. 16 shows the cam mechanism controlling the engagement of the itemtotalizer on certain. cycles of an overdraft operation.

Fig. 1'7 is a fragmentary vertical section through the machine fromfront to rear, to the right of an amount bank loohng towards the Generaldescription I The machine embodying the instant invention comprises ingeneral a frame, a main operating mechanism, a keyboard having controlkeys and data keys, a paper carriage having a spacing mechanismand.control devices, a differential mechanism, a balance totalizer, datatotalizers, totalizer engaging mechanism, and a printing mechanism, theessential portions of these which are necessary to a description of thisinvention being shown in the drawings.

More detailed descriptions of parts of themachine not necessary to anunderstanding of the invention are contained in the patents to whichreference has been made and to which further reference shall be madefrom time to time.

Frame' The frame of the machine consists in part of a base frame plate26 (Fig. 1), side frame plates 21 and 28 (Figs. 2, 3, 5, and 6), andtotalizer supporting frames 29, 30, and 3!, fragmentary portions of theleft ones being shown in Fig. 1, which are fastened together andstrengthened by cross pieces and shafts. The various shafts to bedescribed are journaled in the frame plates Main operating mechanism Themain drive shaft 25 (Figs. 1, 2, 3, 4, 5, and '7) is given one completeoscillation for single cycle operations such as adding, subtracting ortotal taking, and is given four complete oscillations for four cycleoperations such as taking a total or sub-total of an overdraft of theadding and subtracting totalizer or, as hereinafter termed, the Balancetotalizer. Reference to the Lehman patent heretofore mentioned, willgive a full description of the mechanism for operating the main driveshaft in the various operations.

In a single oscillation the main drive shaft 25 (Fig. 1) is rocked firstin a counter-clockwise manner and then in a clockwise manner to homeposition.

deotional elements of the totalizers, in the well known manner, by meansof differential toothed racks 20 (Fig. 1'!) which are operable toposition the totalizer elements 2|, by forward and backward motioninduced by the main operating mechanism, as selectively anddifferentially controlled by the keys.

The keyboard (Fig. 14) consists in part of a plurality of rows of amountkeys 82, each row comprising a denominational order, and a pinrality ofrows of item keys 33, each row also comprising a denominational order,These keys are slidably mountedin the usual manner so that, upondepression, the keys of a given order cooperate with the associateddifferential rack. A typical amount bank and associated diflerentialrack 20 and the corresponding totalizer elements 2| are shown in Fig.1'7. The units order bank of the item keys 33 and the associateddifferential ,rack 34 are shown in Fig. 1. The racks on being springurged rearwardly, when released by the leading frame 60 moving inresponse to the operating mechanism, are positioned commensurate withthe value of the keys depressed.

Totalizers I The rear ends of the racks 20 (Fig. 17) representing thekeys 32 are provided with teeth that will cooperate in the usual mannerwith the toothed pinions 2| of totalizers upon engagement therewith.Each rack in those denominational orders represented by thekeys 32, isalined with a corresponding totalizer pinion-in each of the totalizerrows I, II, III, IV, and VI, there being no totalizer pinions of thosedenominations on totalizer row V. However the totalizer row V has threepinions thereon,"representing the three denominational order rows 33,which are actuated by racks 34 (Fig. 1) similar to the amountdifferential racks. Totalizer pinion 35 (Fig. 1) is associated with theright key bank row 'of the three key bank rows 33, as Fig. 1 is asection immediately to the right of said row; As is shown in Fig. 1there are no totalizer pinlons on the totalizer rows I, II, III, and IVfor this key bank, the same-being true for the other two item key banksrepresented by the keys 33. The totalizer pinions are normallydisengaged from the toothed racks. Totalizer I is an adding andsubtracting totalizer of the single pinion type described in the Lehmanpatent, which, when overdrawn, carries the negative data incomplementary form. The engagement of the totalizers of rows II, III,IV, and VI with the racks, for entering and withdrawing data, is undercontrol of keys and of control elements on the movable paper carriagelike that shown in the patents to which reference has been made, and nodescription of such controls will be made herein, such disclosure beingunnecessary to an understanding of the invention. The means for engagingtotalizer rows I and V with the racks will be fully explainedhereinafter.

Printing mechanism the rack, on record material carried by a platen 33.A symbol-printing segment, shown in the Lehman patent, is positioned byshaft 81, the operation of which shaft is herein described. All of thisprinting mechanism is old in the art and contained in detail in thecited references.

Means for automatically entering data into the item totalizer Thedifferential rack 4 (Fig. 1), representing the units order bank of itemkeys 33, is normally conditioned to move automatically one unit, asrepresented by the one key of that row, on each operation of the machineif an amount key 32 is depressed. Special controls are provided toprevent suoh automatic movement of the rack 34, when the carriage is incertain columnar positions, when an item key 33 has been depressed, andin key controlled "no count operations. When it is desired to enter intothe item totalizer a number larger than one the keys 33 are depressed inthe usual manner which supersedes the automatic movement of the unitrack.

Associated with each amount key bank and with each item key bank is asliding plate each being adapted, through cooperation with studs 22 onthe stems of the keys in their respective rows and with cam slots 23 inthe plates, to be moved toward the front of the machine when any key inthe associated row is depressed. In Fig. 12 the plates associated withthe first, second, and third item key banks are indicated by I, II, andIII respectively, and the plate repre-- senting the highest order keybank in the amount rows is indicated by the word amount. The slidingplates associated with the lower order amount banks are not illustrated,as they are duplicates of the one shown. Each sliding plate upon forwardmovement caused by depressing a key in the associated row acts torelease the zero stop pawl of that row. The zero stop pawls 36, 3'1, and3B representing item key banks I,

II, and III, and zero stop pawl 39 representing 3 the highest orderamount key bank are loosely mounted on shaft 4| These pawls haveupwardly extending arms held in resilient contact with the forward endsof their associated sliding plates by spring 42, 43, 44, and 45.Rearwardly extending arms of said zero stop pawls are provided withretaining hooks to latch over lugs projecting from their associateddifferential racks, the lugs 46 and 41 (Figs. and 11) being typical.Depression of a key will raise the associated zero stop pawl allowingthe rack to follow the leading frame fili (Fig. 17) unless otherwisecontrolled. The zero stop pawl 31 (Figs. 11 and 12) is typical of thosefor the tens and hundreds item key banks. The pawl 36 associated withthe I item key bank (Figs. 10 and 12) is specially designed with twolatching shoulders one of which holds the rack in home position and theother 48 allowing a movement of the rack rearwardly one step, beingconditioned to do so by depressing any amount key 32 (Fig. 14). The rackfor item key bank I is released entirely upon depressing any key in theI item key bank. A second pawl 40 (Figs. 10 and 12) cooperates with thelug 46 to assure that the automatic entry of one unit will not be madein the event a number ending in a cipher is entered by the operator bymeans of the item keys 33, in which event said pawl 40 becomes effectiveand the differential rack of item row I is kept from moving.

Referring to Fig. 10, the shoulder portion 48 on pawl 36 into which thelug 46 is allowed to move whenever the pawl is raised slightly-by meansof a rod 49 (Figs. 10 and 12) causes the rack to move, in following theleading frame, a distance that will add one-unit into V totalizer ifsaid totalizer is in engagement therewith. Rod 49 is lifted by means ofhooks 50 (Fig. 12) on the zero stop pawls of the amountbanks, zero stoppawl 39 being typical. Whenever one of the amount bank zero stop pawlsis rocked by depression of an amount key the rod 49 and pawl 33 arethereby raised enough to allow the rack 34 to move the distance of oneunit, if not otherwise prevented, which movement enters the automaticone into the V totalizer if that totalizer be engaged in add timing. Rod49 is supported by arms loosely mounted on shaft 4i and pawl 36 is theonly pawl normally resting thereon. The leftmost of the supports for rod49 is a be C ank lever 3 l9 (Fig. 12) to which reference will be latermade. Inasmuch as pawl 35 (Figs. 10 and 12 must be raised a second stepto entirely free rack 34 it is arranged that movement forwardly of theslide for item row 1, upon depressing a key in that bank, will rock zerostop pawl 36 slightly more than the pawls in rows II and III are rockedwhen a key is depressed therein, this result being accomplished byfastening to sliding plate I an extension piece 5! (Figs. 10 and 12)positioned lower to engage the upper extending arm of pawl 36, which hasbeen correspondingly shortened, thus causing the forward motion of slideI to be applied to the pawl 36 nearer its axis of rotation, shaft 4|,thus rocking pawl 33 a greater angular distance than pawls 31 and F 38are rocked when keys in rows II and III are depressed, so as to entirelyfree rack 34 (Fig. 10)

The second stop pawl 40 (Figs. 10 and 12) mounted on shaft 4i andassociated with rack 34, of the I item key bank, is normally held inineffective position but is adapted to be rendered effective to locksaid rack 34 in the event an item key in item row II or III is depressedand none in row I is depressed. In the key bank frame 52 (Figs. 1 and12) of the highest amount bank and key bank frame 53 (Fig. 12) of thehighest item key bank is journaled a shaft 54 (Figs. 10, 11, and 12)having rockably mounted thereon a frame consisting of side plates 55 and56 joined by rods 51 and 58. The frame is normally resiliently held, bya spring 59 (Fig. 12), so that rod 58 is kept in contact with heels onzero stop pawls 31 and 38 in such a manner that if either pawl isrocked, due to depressing a key in row II or III, the frame is rocked ina clockwise direction as viewed from its right end. Mounted on the shaft54 and rod 51 is a bell crank lever 10 (Figs. 10 and 12) having a link Hpivotally mounted on its horizontal rearwardly extending arm. The upperend of link 1| has an elongated slot 12 through which a stud 6|,projecting from pawl 40, is inserted, said stud 6| having clearance inslot 12 for free movement when pawl 40 is lifted by the zero stop pawl35 through a rod 13 extending laterally from pawl 36. If a key isdepressed in item rows II or III and none is depressed in row I the bellcrank lever 10 will be rocked clockwise suflicient to resilientlyposition pawl 40, by pull of spring 15, to efiective position to lockthe rack 34 in home position. However, if in addition to a key in itemrows II or III being depressed, a key in item row I is depressed, rod13, secured in zero stop pawl 36 and inserted in an elongated slot 14 inpawl 40, will be raised with pawl 36, which movement will thereby raisepawl 40 against the action of spring Carriage controlled latch for itementering rocks Provision has been made to hold the item entering racm88, I6, and Ti (Figs. 1, 2, and 7) in home position during certainoperations regardless of the movement of the associated zero stop pawlsto ineffective position. Mounted loosely on shaft 18 (Figs. 1, 2, and 7)is a latching member It having a forwardly extending flange blocking therearward movement of all of said item entering racks by contactingshoulders 90, 8G, and 82 on said racks. Clockwise movement of latchingmember I9 as seen in Fig. 7 will release all of the said item enteringracks 88, It, and I'll (see Fig. 2) to control by the zero stop pawls.Link 80 (Figs. 1 and '7) pivotally connected by stud 38 to a downwardlyextending arm of latching member 18 and mounted at its rear end on shaft82, by means of a bifurcation, is slidable forwards and backwards tolatch and unlatch the item racks. A spring 88 constantly tends to urgethe link to the rearward or unlatching position. Cam lever 81; fast tothe main drive shaft 25 normally holds link 88 in the latching positionby contact with stud 69 projecting from link 88, but releases it duringa machine operation to the action of spring 88 as said shaft 25, asbefore explained, rocks first clockwise andthen counter-clockwise asseen in Fig. 7. A bent over car 85 on link 80 normally contacts theforwardly extending arm of a bell crank lever 88 (Figs. '7 and 9)loosely mounted on shaft 817. As shown in Fig. 7, bell crank lever 88 isresiliently kept at its farthest clockwise position by a spring 88 (Fig.7) holding stud I05 in engagement with a slot in the rear end of linkI08, which link has its forward movement limited by contact of lever 88with frame 85, in which position bell crank lever 88 normally blocks therearward unlatching movement of link 80. Lever 89 (Fig. 7), rockable bycarriage borne control elements, the construction and operation of whichcontrol elements are well known in the art and described in the citedreferences, has fastened to the left end thereof a link I which is drawnupwardly when the lever 88 is rocked out of home position determined byframe member 85 by one of said control elements, which in turn rocks abell crank lever I02, mounted on a stud I03, in a clockwise manner. Atypical control element IN is shown in Fig. 7 in ineffective position.The lower extending arm of bail crank lever I02 is pivoted to theforward end of a link I04 the rear end of which is bifurcated to engagea stud I 05 on the upper extending arm of bell crank lever 88, so thatrearward movement of link I08, upon lever 88 being rocked by a controlelement, causes the bell crank lever 86 to be rocked countor-clockwise,clearing the path of movement of the ear 85. Bell crank lever 86 alsomay be rocked counter-clockwise to ineffective position by means of astud I06 (Figs. '1 and 9). Stud I08 projects from an arm I01 secured toshaft 8? which is rocked clockwise by means of arm I08, also secured tosaid shaft 87, when link I09 is moved forwardly. Link I09 is pivotallyfastened at its rear end to arm I08 and at its forward end to a plateIIO which is slidably mounted on studs III and H2 within limits imposedby slots I I8 and I I4 (Fig. '7). Plate II 0 is resiliently held in itsrearmost position by means of shaft at which is aasaece I held in itsmost cl position by the weight of a symbol carrier not shown in thedrawings. but which is shown in the Lean patent, to which reference hasbeen made, in coection with the symbol printing mocha,

If plate tit is moved forward inediate between its foremost and rearmostpositions, sur-= face II it; (Figs. '7 and 8) will be moved in front ofear If plate its is moved to its. foremost position, surface M53 israised clear of ear to and in so being raised, stud we raises theforward arm of hell crank lever 86 allowing link to to move to the rearwhen the machine is oper ated, thus freeing the item racks of thecontrol of latch member 716. On the upperedge of plate Ht are camminglugs cooperating with the key stems in the control key bank. The cgsurface lit (Fig. 7) cooperates with the total or, balance key for Itotalizer (see Fig. 1 so as to move plate M8 to its foremost positionthus freeing the item racks for movement on such opera tion. Insub-total operations of the I or balance totalizer the balance key isdepressed in conjunction with the sub-total key, causing the sameresult. The other camming surfaces on plate lit are provided tomoveplate iii? to a determined position when any of the keys associatedtherewith are depressed depending on whether the item racks are to' bereleased or blocked. The movement of plate Ht, link I09 and shaft 87also serves to set the symbol printing segment for various machineoperations as controlled by the keys depressed. The symbol printingmechanism not being essential to this disclosure is not shown herein,but is shown in the cited references.

A special "no count key shown in Figs. 8 and 14 is provided to block theitem racks by special manual control. Depression of this key, throughcamming surface 8 on a slide H8 mounted on frame supported studs I20 andHi, causes the slide I I8 to be moved to its forward limit of motion asdetermined by slots I22 and I23 carrying with it the plate 0 by means ofa pin I 24 mounted on plate III) and inserted through slot I22 so as tonormally bear against the rar end thereof as shown. Fullmovementforwardly of slide H9 is just sumcient to move plate IIO to itsintermediate posltion causing surface IIS (Fig. 7) to block the rearwardmovement of link 89 thus keeping the differential racks of the item rowslatched in home position preventing entry of items into totalizer V.

If it is desired to overcome the action of the carriage control elementspermitting automatic item entering on certain machine operations withouthaving to depress the "no count key, the key controlling such operationmay be used to shift plate III? to one of the intermediate positionsraising surface 5 to effective position. Such a key I24 isshown inFig.7.

Item totalizer engaging means The item totalizer V (Figs. 1 and 4)comprises three pinion wheels each of which represents and is actuatedby the associated differential rack of the item denominational rows I,II, and III. These pinions may be rotated by the racks under key controlin adding operations and may be caused to differentially position theracks by being stopped at zero when reversely rotated in total takingand sub-total taking operations, the time of engagement with the racksduring the operative cycle determining the type of operation asiswellknowninthea assascs In this type of machine, adding operationsconsist in setting the racks differentially during the first half of theoperative cycle then engaging the totalizer pinions with them as theyare returned to home position.

On the main drive shaft 25 (Figs. 3 and 4) 'is a plate I25 which isrocked first clockwise then counter-clockwise by said shaft on eachmachine operation. Pivoted to said plate is a flying lever I26 havingpivoted to its upper end a link I21 and a bell crank lever I28, saidbell crank lever I28 being normally resiliently held in its extremecounter-clockwise position, as determined by stud I29, by a spring notshown.

The rear end of link I2! is fastened to the arm I42 of the totalizerengaging shaft I43 so that forward movement of link I21 will rock shaftI43 counter-clockwise causing camming plate I44 (Fig. 4) secured theretoto rock the totalizer sup porting frame, the left ,arm I of which isshown, and the totalizer pinions toward their associated racks.

As plate I 25 is rocked clockwise on the first half of the operativecycle, square stud I45 normally will meet surface I46 on bell cranklever I28 whereupon relative motion between lever I26 and plate I25ceases and the remaining clockwise motion of plate I25 draws link I21forward, engaging the totalizer V at the end of the first half cycle. Onthe counter-clockwise movement of plate I25 during the last half of theoperative cycle, square stud I41 contacts flying lever I26 whereuponlink I2'I is forced rearwardly disengaging the totalizer near the end ofthe operative cycle. Thus, the No. V totalizer is normally conditionedto be engaged with the differential racks during the last half of themachine operation in add timing on each operation of the machine.

Instead of the V totalizer being engaged with the differential racks inadd timing each machine operation, means has been provided to preventstud I45 from engaging surface I46 of bell crank lever I28 unless thecarriage is in position where there is a control element to rock a leverwhich rocking movement is transmitted to a link I48 (Fig. 4) drawing itupwardly which, in turn, rocks retaining pawl I48 counter-clockwisearound pivotal stud I50. When pawl I49 is rocked counterclockwise itreleases a bell crank lever II, pivotally mounted on a frame supportedstud I52, to the action of a spring I53 tending to turn itcounter-clockwise. Bell crank lever I5I has a pin I54 projecting fromits upper arm into the plane of movement of bell crank lever I5I sothat, as flying lever I26 turns about pivotal stud I55 as a center, theupper arm of bell crank I28 will strike pin I54, if it is in homeposition as shown in Fig. 4, causing said bell crank lever I28 to turnclockwise in relation to flying lever I26 which will move surface I46out of the path of movement of stud I45 as plate I25 is rockedclockwise, thus preventing the engagement of thetotalizer. However, ifpawl I49 releases bell crank lever I5I to the action of spring I53, pinI54 will not be struck by the upper arm of lever I28 and the V totalizerwill be engaged in add timing. As the plate I25 rocks counter-clockwiseto home position, a lever I56 is rocked counter-clockwise on a framesupported shaft I58 by contact of the surface I5'I of plate I25, againstextension I68 of lever I56, which moves link I58 upwardly, thereby,through engagement of the bifurcated upper end of said link with pinI54, rocking bell crank lever I5I to home position where it is reengagedby pawl I48, providing the control element on the carriage no longerholds link I48 upwardly. If the control element is still in effectiveposition pawl I49 will not latch. In the particular accounting problememployed as illustrative of the invention it is seen by reference toFig. 15 that the control element, conditioning the V totalizer engagingmechanism for adding, would be placed so as to be effective in the checkprinting positions 62. The placement of the control-elements is entirelyoptional, being governed by the particular accounting system. In thisparticular accounting system it is assumed that only the checks are tobe counted.

On total and sub-total operations it is necessary to engage thetotalizer pinions with the racks at the beginning of the machine cycleso the rear,- ward movement of the racks will rotate the totalizerpinions to zero by the middle of the cycle. On total taking operationsthe totalizer pinions are disengaged from the racks before forwardmovement of the racks to home position, thus leaving the totalizer atzero. On sub-total operations the racks are in engagement with thetotalizer pinions on both their rearward and forward movements.

Secured to a hub on a collar I66 (Fig. 4) rotatable on a shaft I60 is alever I 6| having pivotally mounted on its forward end a lever I62. Bymeans of a spring I63 and a stop stud I61, levers I6I and I 62 arenormally held in the position shown in Fig. 4, but lever I62 may bemoved clockwise relative to lever I6I, against the tension of springI63. Integral with collar I66 is a lever I 64 resiliently held in theposition shown in Fig. 4 by a stop stud I65 and spring I80, to cause aflexible coupling between the levers NH and I64, so that lever I64 maybe moved clockwise relative to lever I6I against the tension of springI80. Spring I is sufiiciently strong so that clockwise movement impartedto lever I64 through yoke II, as will be explained, moves lever I6I andI62 with it, so as to place surface I82 in the path of movement of thesurface I83 on flying lever I26, as plate I25 is rocked clockwise thusengaging totalizer V at the commencement of the cycle of operation. Theflexible coupling of levers I6I and I64 prevents breaking of the partsin case of misoperation of the machine.

Continued movement of plate I25 causes surface I 83 to strike lever I62,which engages the V totalizer, after which surface I83 by-passes leverI6 2 due to the flexible construction, near the middle of the cycle. Atthis point lever I6I is allowed by its own weight to return to normal,if a subtotal is to be taken, which allows the totalizer to remain inengagement with the racks until the close of the machine operation whenstud I41 contacts flying lever I26 disengaging thetotalizer. On totaloperations, by keeping lever I64 turned clockwise during the return ofplate I25 counterclockwise to home position, surface I85 of flying leverI26 will strike surface I86 of lever I62 taking the V totalizer out ofengagement with the differential racks before the racks move to homeposition in the second half of the operative cycle, thus leaving thetotalizer pinions at zero. With the exception of the yoke method ofactuating lever I64, which depends on depression of the balance keywhich is the total key for the I totalizer as will be next explained,this total engagement mechanism is old in the art and further detailsmay be secured from the cited references if desired.

It is desirable on total and sub-total printing operations of thebalance or I totalizer that the amount standing on the item or Vtotalizer shall izer total taking controls of the izers so thatdepressing the balance key will nor.

d, 5, and 6) has beenprovided between the totah I and the V total mallyoperate both the I and V totalizer enga mecha II. '1 -1, a

. asses The totaliaer ens means for the Ior bal= ance totalizer issubstantially the same as that for the V totalizer, which beendescribed, consisting of a plate secured to and oscillating with shaft25, said plate having a flying lever pivotally attached thereto tooperate thelink 3M (Fig. 3) at the proper times as determined by the addtiming or the total timing controls. The I totalizer total control leveruse (Figs. 3 and it) operated by the balance key is arranged to oper atethe V totalizer total control lever I98 by means of its flexibleconnection to lever let.

The yoke "I is loosely mounted on shaft tat,

(Fig. 6) by two arms I81 and I88. Arm its is fastened to total controllever i893 (Figs. 3, and 6) of the totalizer engaging mechanism for thebalance or I totalizer so that, when the balance a' counter-aloe amanner, the pinions of the rage device to engage their associatedtoothed members we so as to be erentially rotated thereby in dataentering operations or to control the difierential movement of the rackin data withdrawing open ations, as will be explaind. An alig device(Isl locks the piniom I when they arenot en gaged with the toothedmembers fist, and a wide tooth prevents the pinions from being rotatedthrough zero when the racks are being eren= tially positioned inaccordance with the data in the said storage device. Applicant directsattention to United dtates Patent No. 2,079,355, issued to Charles L.Lee, for more complete structural details of the storage device and tothe Lehman patent for details of the engaging cams.

In the Laurence an Patent No. 2,243,8dii,

- to which attention has been directed, full dis-= key (Fig. 4) isdepressed, the lever its will be rocked, conditioning the balancetotalizer controls, which simultaneously will rock the yoke I8! (Figs. 4and 6) around shaft 969. Lever I94 has therein a hole for receiving apin i9t projecting from the left end of yoke IBi. Collar I66 may beshifted to the left (Fig. 6) on shaft I60 without disconnecting the pinI99 from lever I66 as the pin I90 is longer than the possible shiftingmovement of collar I68. The movement of yoke I8I. in response to themovement of lever I89, therefore always moves lever I65 thus controllingthe total and sub-total timing of the I and V totalizers alike,providing levers ISI and I62 are, as is normally the case, in the planeof movement of flying lever I26 as shown in Figs.

5 and 6. In sub-total operations the balance key is released near midcycle which allows the levers I89 and I64 to assume their normalposition. Therefore, whenever a total or sub-total of-the balance or Itotalizer is taken, the item or V totalizer is operated in the samemanner unless collar I66 (Fig. 6) is shifted to the left from its normalposition, rendering levers I69 and I62 ineffective to control the flyinglever I26.

Overdraft totals and overdraft sub-totals of balance totalizer Wheneverthe balance totalizer is overdrawn the negative data thereon will be incomplementary form which requires special total taking and sub-totaltaking mechanism to print it in true form, and as the data on the Vtotalizer is always in positive form, special mechanism is provided tooperate the V totalizer by independent means.

The machine is provided with a data storage device consisting of aten-toothed storage pinion for each bank of keys, each of the storagepinions I95 (Figs. 1 and 2) being engageable with a toothed I95 to whichthe camming arms are secured, in 15 In the fourth cycle,

closure is made of the mac for lostthe balance key for the I totalizerwhen said totalizer is overdrawn, and for unlocking the four cycle mochaused in takings. total or sub-total of the overdrawn totalizer, toconvert the complement of the true negative total sci ing on the saidbalance totalizer so that it may be printed as a true negative total.The said complement of the true negative total is cleared from thetotalizer in total taking operations and reentered into the totalizer insub-total t operations. Whenever either the total overdraft or sub-totaloverdraft keys are depressed this overdraft mechanism causes the machineto make four complete oscillations of the main drive shaft 25 and alsocauses the assembly of cams on stub shaft H99 (Fig. 2) to make onecomplete rotation. The rotation of these cams controls the totalizerengaging mechanisms of the I totalizer, the V totalizer, the engagingmechanism of the storage device, and the cycling mechanism.

In taking a total of the overdrawn balance or I totalizer, thecomplement of the negative total is withdrawn therefrom in the firstcycle by having the totalizer pinions in engagement with the racksbefore their rearward movement and having the totalizer rotated to zero.At the midcycle, the zeroizecl balance totalizer pinions are disengagedfrom the racks and the pinions of the storage device are engagedtherewith, to have added therein the said complement of the negativetotal as the racks move forward to home position on the last half of thefirst cycle. In the second cycle, the then cleared balance totalizer isconditioned for a. subtract operation and its pinions are carried intoengagement with the racks before their rearward movement commences. Thestorage device pinions having stayed in engagement with the racks andbein prevented from passing through zero, the complement of the truenegative totalwill be subtracted from the zeroized balance totalizer,leaving thereon the true negative total, whereupon the balance totalizerpinion and storage device pinions are disengaged from the racks whichthereafter move forward to home position during the last half of thesecond cycle. In the third cycle, the balance totalizer pinions areengaged with the racks before their initial rearward movement so that onthe rearward movement the true negative total will be taken from thebalance totalizer. The storage device pinions are then engaged with theracks and on forward movement of the racks to home position the truenegative total is entered therein.

the storage device, having bemovedinuniso' nbyc'ams been left inengagement with the racks, is cleared of the true negative total as theracks move rearwardly in the first half cycle and the printed impressionthereof is made at mid-cycle, after which the zeroized storage device isdisengaged and the racks are returned to home position, completing theoperation.

In taking a sub-total of the overdrawn balance totalizer, the operationduring the first three cycles is the same as in a total taking operationjust described, except that in the ,last half of the third cycle,conditions are set up to engage the balance totalizer pinions with theracks during the first half of the fourth cycle in subtract timing,which event causes a subtraction of the true negative total to be madefrom the zeroized balance totalizer, which overdraws the said balancetotalizer, leaving thereon the complement of the negative total, as itwas at the beginning of the operation. All of this mechanism is old,having been fully described in the Laurence Lehman patent mentionedbefore, this summary being given as a. background for explaining andcomparing the operation of the item or V totalizer control mechanismtherewith.

Item totalizer control on taking a total of the overdraft and on takinga sub-total of the overdraft As it is one of the purposes of thisinvention to take the total or sub-total of the data. contained on theitem or V totalizer with the taking of a total or sub-total of thebalance totalizer, whether the condition of the balance totalizer bepositive or negative, and as there is always a positive amount on theitem totalizer, it is necessary to provide special mechanism forcontrolling the engagement of the item or V totalizer on total andsub-total operations when the balance totalizer is overdrawn. Thismechanism operates in conjunction with the overdraft total taking andsub-total taking mechanism of the balance totalizer as described hereinin summary and in the Lehman patent in detail,

On the first cycle of the four cycle overdraft operation, the pinions ofthe item or V totalizer are engaged with the racks on their rearwardmovement, in total timing, just as are the pinions of the balancetotalizer, the yoke I8I and pin I90 connection (Fig. 6) which normallycauses the balance totalizer total control to operate the item or Vtotalizer total control being in normal position. The item totalizer isan adding totalizer having an adding pawl 92 (Fig. 1) only, whereas thebalance totalizer is an add and subtract totalizer having an adding pawl9I (Fig. 17) and a subtracting pawl 93.

The pinions on the item totalizer, therefore, cannot be reverselyrotated through zero, whereas the pinions of the balance totalizer maybe revrsely rotated through zero, providing the adding pawls arerendered ineffective and the subtracting pawls rendered effective. Theitem or V totalizer being in a zeroized condition at the end of thefirst cycle of operation, the associated item racks, 34, I6, and 11(Fig. 2) cannot move rearwardly on the second and third cycles of theoverdraft operation, in which cycles the balance and item totalizers areagain engaged with the racks on their rearward movement, because theadding pawls 92 (Fig. 1) will prevent pinions 35 from passing throughzero. The item totalizer V is engaged, therefore, in the second andthird cycles in total taking timing, but without effect on the pinions,as they are at zero. The

balance totalizer in the second cycle is conditioned for subtraction bylever 249 (Fig. 3) in the manner described in the Lehman patent,rendering the adding pawls M (Fig. 17) ineffective and rendering thesubtracting pawls 93 effective, thereby allowing the pinions 2i to passthrough zero. In the third cycle, the balance totalizer is conditionedfor total taking, which allows the amount racks associated therewith tomove rearwardly until the pinions 2| reach their zero stops. During thethird cycle, the item differential racks remain stationary as they doduring the second cycle, for the same reason. The total taken from theitem or V totalizer during the first cycle is added into and thus leftin the storage device until the end of the third cycle because, as said,the racks associated with the item totalizer are unable to move duringthe second and third cycles, whereas the data on the balance totalizeris being converted during the second and third cycles so as to turn" thecomplement of the negative total into a true negative total. In thefourth cycle on an overdraft total taking operation, collar I66 (Figs.2, 5, and 6) carrying the item total control levers I6I and I62 (Fig. 4)is shifted toward the left side of the machine on shaft I60, leaving thesaid item totalizer total control levers still operable by yoke I8I(Figs. 2 and 6) secured to the balance totalizer control mechanism, butineffective to control flying lever I26 (Fig. 4) as levers I6I and I62have been moved to the left of the operative plane of said flying leverI26. In the said fourth cycle, the balance totalizer is engaged with theracks only in a sub-total taking operation, such engagement being insubtract timing to subtract the true negative total as stored in thestorage device from the zeroized balance totalizer. The V or itemtotalizer likewise is not engaged with the racks in the fourth cycle ofan overdraft total operation, but is engaged with the racks in addtiming in an overdraft sub-total taking operation, thus transferring thetotal of items from the storage device to the V totalizer as it was atthe beginning of the operation.- The storage device is cleared as theracks move rearwardly in the fourth cycle and when the storage devicepinions are stopped in zero position the associated racks are positionedin accordance with the data withdrawn and the printer segments 24 (Figs.1 and 17) being accordingly set, the printing impression is then made.The timing of the printing is fully described in the Lehman patent, theimpression being made at about the middle of the fourth cycle.

Secured to stub shaft I98 (Fig. 2) on which are secured the camscontrolling the total taking operations of the overdrawn balancetotalizer as described in the Lehman patent, is a plate cam I99 whichmakes one rotation with shaft I98 in a counter-clockwise direction, asindicated by the arrow, on each overdraft total taking or overdraftsub-total taking operation. A link 299 slidably mounted on shafts I98and 25 by means of slots HI and 202 is held in the forward positionshown in Fig. 2 by a roller cam follower 203, mounted on the forward endof link 209, which normally bears against a high part of the peripheryof plate cam I99, keeping the link 200 from moving rearwardly as urgedby spring 204. LinklOIl is held in the normal position shown, until camI99 has rotated approximately 270 degrees, which occurs at the end ofthe third cycle, when a low portion of the cam comes opposite the camfollower 203, allowing link 200 to move rearwardly in response to theaction of spring 204. The cam I 99 is so shaped that link 200 is in therearward position during the entire fourth cycle of an overdraftoperation, the shaft !98 and cam I99 turning 90 degrees each cycle.

The movement of link 200 is transmitted to link 2, on the left side ofthe machine, by means of shaft 2I5 having secured thereto arms 2I6 and2!! to which the links 260 and 2 are respectively pivoted. Shaft 2I5 isjournaled in brackets 2H! and 2; riveted to totalizer frames 22!] and22!. The forward end of link 2M is pivoted to the right arm 238 of ayoke 239 having a left arm 240. Yoke 239 is loosely mounted by said arms238 and 240 on shaft I58. Pivoted to arm 248 is a forwardly extendinglink 242 having its forward end pivoted to cam lever 223 (Figs. 2 and 6)said cam lever 263 being pivoted to a stud 226 (Fig. 6) mounted onauxiliary frame plate 225. Backward movement of cam lever 243 inresponse to the same movement of links 242, 2M and 292 '(Figs. 1 and 6),by means of cam slot 226 formed in cam lever 243, cooperating with pin2M extending from collar I66, shifts said collar to the left, whichcarries with it the item or V totalizer total control lever assemblyISI, I62 and I64. When levers iIiI, I52, and I62 are shifted to theleft, they are out of the plane of movement of flying lever I26 andtherefore unable to control its movement. Therefore, on the fourth cycleof an overdraft, links 2M, 2M, and 222, moving rearwardly, move leversQGI, I62, and IE2 to the left, thus allowing control of the item or Vtotalizer engaging means in the fourth cycle by means to be described,independent of the balance totalizer total taking controls.

At the end of the third cycle of an overdraft total taking or overdraftsub-total taking, the data of the V totalizer and the data of the Itotalizer are in the storage device in true form, so that thedifferential racks may be set thereby. If a total is to be taken, thestorage device pinions in engagement with the racks at the commencementof the fourth cycle are rotated to zero as the racks move rearwardly. Atthis point the printing operation takes place, the printing segmentsthen being differentially set according to the true negative data andthe item data. The storage device pinions are then disengaged and theracks return to home position, leaving both totalizers and the storagedevice cleared.

If a sub-total taking of the overdraft is performed, the storage deviceis operated as in an overdraft total taking, and in addition the Itotalizer is engaged with the racks during the first half of the fourthcycle in a subtract operation and the V totalizer is engaged with theracks during the last half of the fourth cycle in an adding operation.It is for this reason that collar IE6 is shifted to the left, allowingindependent control of the I and V totalizer total control levers. Atthe end of such sub-total taking of the overdraft, the item data is backin the V totalizer in true form, the negative-data is in the I totalizerin complementary form, and the storage device is cleared.

The mechanism required to replace the positive item total from thestorage device into the item or V totalizer on the last half of thefourth cycle of a sub-total taking of the overdraft is new. Thismechanism is controlled by the cam 26! (Fig. 16) which controls thetotalizer en'- gagement for the balance totalizer in overdraftoperations as set forth in the Lehman patent. on the left end of shaft248 (Figs. 2, 3, 4, and 16) is secured a finger 248 adapted, when shaft248 is rocked counter-clockwise as seen in Fig. 4, to strike a stud 256(Fig. 4) on one arm of a bell crank lever 25I rotatably mounted on framesupported stud 252 (Figs. 4 and 6). The other arm 253 of bell cranklever 25! bears a stud 254 which is engaged by a bifurcation in lever255 pivotally mounted on stud 256. A cam slot 25? in lever 255 engages apin 258 extending from a lever 259 which is pivotally mounted on stud266, so that as finger 269 rocks bell crank lever 25i clockwise, as seenin Fig. 4, lever 255 is rocked counter-clockwise, and lever 259 isrocked clockwise to the effective position shown by the broken lines. Inthe effective position of lever 259 a stud 266 borne thereby ispositioned to contact surface I63 of flying lever I26 so as to engagethe item or V totalizer at the end of the first half of a cycle. It hasbeen arranged that this occur during the fourth cycle after the rackshave been positioned by the storage device, thus causing the datawithdrawn from said V totalizer in the first cycle and placed in thestorage device, to be reentered in the item totalizer in the last halfof the fourth cycle as the racks return to home position.

The movement of finger 2 39 in a sub-total taking of the overdraft, inaddition to causing an adding operation of the item totalizer in the'last half of the fourth cycle, causes a subtracting operation of thebalance totalizer.

The cam 2M (Fig. 16), secured on shaft I98, which controls the movementof finger 249 makes one complete rotation in the four cycles of anovedraft total or overdraft sub-total operation as does the cam I99(Fig. 2) the movement of which has been explained. Secured to the lightend of shaft 248 is a bell crank lever 216 to one arm of which isattached a spring 21'! urging the shaft in a clockwise direction. To theother arm of bell crank lever 276 is pivoted a link 212 (see Fig. 16)having its rear end pivoted to the forwardly extending arm of a bellcrank lever 214 rockably mounted on stud 215. A roller cam follower 213mounted on the forward arm of bell crank lever Tit-is held against theperiphery of cam 28 I by the actioh of spring 211. As cam 26! movescounter-clockwise a low point thereon coming to effective position willcause shaft 248 to rock clockwise and a high point on the cam thereforerocks shaft 248 counter-clockwise as seen in Fig. 16. A partialclockwise movement of shaft 248, as viewed in Fig. 16, causes finger 249to condition the balance totalizer engaging controls for a total takingoperation and a full clockwise movement thereof conditions the balancetotalizer controls for a subtract operation and serves in addition tocondition the item or V totalizer controls for an adding operation asjust explained. Latch 28! is rocked counterclockwise on stud 282 bydepressing either the total overdraft or sub-total overdraft keys,releasing bell crank lever 214 to the action of cam 26! against which itis held by the tension of spring 21'! acting through link 218. Acounterclockwise movement of hell crank lever 2" caused by the highpoints 219 and 280 on cam 26! striking cam follower 2'13 raises therearwardly extending arm of hell crank lever 214 so as to be engageableby latch 28! at the end of either the third cycle or the end of thefourth cycle. On an overdraft total taking operation, latch 281 iseffective at the end of the third cycle of operation and in. anoverdraft sub-total taking the latch 281 is not effective until the endof the fourth cycle of operation. Thus in an overdraft total operationthe fourth quadrant 283 of the cam 261 has no effect on the shaft 248,whereas in an overdraft sub-total operation the low portion constitutingthe said fourth quadrant of the cam, conditions the engaging controls ofthe balance totalizer for a subtract operation, and conditions the V orthe item totalizer for an adding operation. Details of the movement ofshaft 240, of the cam 261, and of the conditioning of latch 281 arefully described in the Lehman patent.

Special item counter A special item counter 300 (Figs. 2, 3, and 13) isprovided to count operations involving the balance totalizer undercontrol of th amount keys. Thus, in a bank customer's account such asthat shown in Fig. 15, a unit will be added into the counter 300 foreach addition into and for each subtraction from the account as theseinvolve the balance totalizer. The counter 300 not being cleared ontotal operations, a record of the number of deposit and withdrawaltransactions over a selected period of time may be kept. Projecting fromthe balance totalizer engaging link 301 (Figs. 3 and 13) is a stud 302(Fig. 13) loosely embraced by a bifurcation in the end of lever 303secured to a shaft 304 (Figs. 3 and 13) which shaft has secured to itsleft end a lever 305 having a bent over ear 306.

Each time the balance totalizer is engaged and disengaged the stud 302through lever 303 rocks shaft 304 first counter-clockwise then clockwiseas seen in Fig. 13, which causes lever 305 to rock in the same sense. Alever 301 pivoted on stud 331 has a hook 300 (Fig. 3) at its rear ndadapted to engage car 306 so that the complet rocking of lever 305 giveslever 301 one forward and backward motion, if levers 305 and 301 arecoupled together, thus adding a unit into the counter by means of a pawl300 (Fig. 13) and ratchet 310, said pawl being pivotaliy connected tothe link and counter wheel shaft in the conventional manner.

Normally lever 301 is kept raised in the disengaged position shown inFigs. 3 and 13 by a link 311 whose upper end is pivoted to lever 301 andwhose lower end is pivoted to a lever 312 secured to a shaft 313 whichshaft is held in its most clockwise position as seen in Fig. 13, asdetermined by stud 314 and slot 315, by means of a lever 316 secured toshaft 313, said lever 316 being operated by a link 3 I 1 pivotedthereto. Link 311 has a bifurcated front end, which engages a stud 318(Figs. 12 and 13) projecting from the upper arm of bell crank lever 319which as before explained is secured to the left end of shaft 41. Aspring 320 normally holds link 311 in resilient contact with stud 318 sothat bell crank lever 319 may move relatively to link 311 as is requiredin total operations to be explained.

Whenever an amount key is depressed shaft 4| is rockedcounter-clockwise, as previously explained, which rocks bell crank lever319 in the same sense, resiliently drawing forward link 311 which rocksshaft 313 (Fig. 13) counter-clockwise causing hook 308 to be operativelyengaged with lever 305 so that when the balance totalizer is engaged, aunit will be added into the counter. 300. As bell crank lever 319 alsorocks during a total or sub-total operation, by reason of the zero stoppawls being moved to unlatched position as explained in the Lehmanpatent to which reference has been made, which would normally engagehook 308 with lever 305 and which action must be prevented so totaloperations will not be counted, a lever 321 is secured to shaft 313which lever, if kept from moving from its home position shown in Fig.13, will prevent shaft 313'from moving and thus prevent hook 308 fromengaging lever 305. On the outer end of lever 321 is a stud 322 adaptedto be engaged by surface 329 of an arm 323 secured to a yoke 325 looselymounted on shaft 160. The yoke 325 i normally held in the inoperativeposition shown in Fig. 13 by the weight of arm 323 holding a stud 326,projecting from arm 321 pinned to yoke 325, ainst surface 328 of amember 330. Surface 320 on the member 330 is adapted to force yoke 325counter-clockwise blocking motion of lever 321 on total takingoperation, as member 330 is forced downwardly upon depression of thetotal key, in a manner well known and described in the Ellis Patent No.1,203,863, to which reference is made, the downward motion of saidmember 330 controlling the release of keys during total operations.

Operation In the facsimile account record shown in Fig. 15 the checksfor $25.00 and $10.00 were entered into the balance totalizer byseparate machine operations, and a unit was automatically added into theitem or V totalizer for each of these subtract operations. A carriagecontrol element positioned for these columns conditions the item or Vtotalizer to add andconditions the balance totalizer to subtract. Thedeposit of $75.00 was entered in a column where the carriag controlelement conditioned the balance totalizer to add but did not conditionthe item totalizer to add. Therefore, when a sub-total of the positiveamount then standing on the balance totalizer is printed in the firstbalance column, a 2 is printed simultaneously in the item columnrepresenting the two checks. The carriag is then tabulated to the secondbalance column and a total is taken, reproducing the data printed in thefirst item and balance columns and clearing the machine. This recordsheet is then removed from the machine to be reinserted in futuretransactions. When the record is next used for a transaction the oldbalance, $40.00, is picked up and is added into the balance totalizer,without printing, the printing segments being prevented from moving inthe well known manner described in United States Letters Patent No.1,562,- 491, issued to F. W. Bernau, by means of a non-prin baileffective in a column where it is desired to have the pickup of the oldbalance occur. The next transaction, a list of checks totaling $160.00,is then entered in the check column in a single entry and this being thetotal of a list of fifteen checks the key representing 15 in the itemkey banks are depressed by the operator causing that amount to beentered into the V totalizer and later to be reproduced on the total andsub-total operations. The total and sub-total operations just mentionedare overdraft operations and the 15 printed in the sub-total column 63required the use of the special mechanism which forms a part of thisinvention. The third and fourth lines of entries are single checktransaction in which the automatic 1 is P nted.

If it is desired, the number of checks constituting the previoustransaction may be "picked up" along with the old balance on asubsequent transaction, thus having the last entry in the item columngiving the total number of checks entered in all the transactioncovering the period of accounting.

While the form of mechanism herein shown and described is admirablyadapted to fulfill the objects primarily stated, it is to be understoodthat it is not intended to confine the invention to the one form orembodiment herein disclosed, for it is susceptible of embodiment invarious forms all coming within the scope of the claims which follow.

What is claimed is:

1. In a machine of the class described havin a plurality of individuallymounted totalizers at least one of which is an adding and subtractingtotalizer, the combination of a main operating means to cause themachine to make cycles of operation; a plurality of diiierential meansongle pinion for. each denominational order in which totalizer negativedata is accumulated in complementary form; a separately mounted addingtotalizer consisting of a single pinion for each denominational ordersaid denominational orders being distinct and separate from those of theerated by the main operating means and engageable with the totalizersfor entering items into and withdrawing totals of items from therespective totalizers; separate totalizer engaging means for each ofsaid totalizers; separate controls for said totalizer engaging means; ameans normally connecting the totalizer engaging control means of theadding and subtracting totalizer and the totalizer engaging controlmeans of an associated totalizer so they will operate their respectiveengaging means alike; and shifting means whereby the said control meansfor the associated totalizer is automatically rendered ineifective incertain cycles of operation.

2. In a machine of the class described, the

-' combination of an adding and subtracting totalizer; an addingtotalizer; a plurality of diiierentially settable means; a means toengage the adding and subtracting totalizer with one of thedifierentially settable means for the purpose of entering items thereinor withdrawing totals of items therefrom; means to engage the addingtotalizer with another one of the diflerentially settable means for thepurpose of entering items therein or withdrawing totals of itemstherefrom; means controlling the engagement of the adding totalizer withits associated differentially settable means; means controlling theengagement of the adding and subtracting totalizer with its associateddifferentially settable means; and coupling means comprising a two-partmember whereby the engaging controls of both totalizers are operatedtogether, one part of said member bein shiftable so as to be inoperativeto control the engagement of the adding totalizer. 3. In a machine ofthe class described havin a totalizer for registering positive data intrue form and negative data in complementary form, and a secondtotalizer for registering positive data in true form, the combination ofa plurality of differential mean-s for, data entering and datawithdrawing; individual total and sub-total totalizer engaging controlsfor each totalizer whereby data may be entered into or withdrawn fromeither totalizer by their control upon the engaging operating means;means normally connecting the aforesaid totalizer engaging controls sothat one is operated by the other and means for rendering ineffectivethe totalizer engaging controls for said second totalizer.

4. In a machine of the class described, the combination of a mainoperating means; an adding and subtracting totalizer consisting of asinadding and subtracting totalizer; a separate differential means foreach denominational order for entering data into and withdrawing datafrom the pinions of the totalizer with which such differential means isassociated; a storage device consisting of a single pinion for each ofthe denominational orders into which data from the corresponding pinionson the totalizers may be stored either thereafter to be cleared from themachine or restored to the totalizers; a totalizer engaging means foreach totalizer; storage device engaglng means; a total key; means to control the totalizer engaging means of both totalizers which control meansis rendered efiective by the operation of the total key; a second totalkey to be operated when there is negative data in the adding andsubtracting totalizer; a'second control means operated by the saidsecond total key to operate the first mentioned control means; and a camoperated with the second control means to control. the efiect of thesecond control means on the first mentioned control means.

5. In a machine of the class described, the combinatiori of an itemtotalizer for accumulating positive data; an adding and subtractingtotalizer for accumulating positive data and negative data said negativedata being accumulated in complementary form; a plurality ofdifferentially settable means for entering data into, reading data from,or withdrawing data from said totalizers; a diiierential means beingprovided for each denominational element of each totalizer; a separatemeans to engage each totalizer with the differential means for entry,reading, or withdrawal of data; means for jointly operating the twototalizer engaging means on data withdrawing operations; means forrendering ineifective the adding totalizer engaging operating means; anda second means for operating the totalizer engaging means for the addingtotalizer on data reading operations when the first mentioned operatingmeans is ineffective.

6. In a machine of the class described, the combination of an itemtotalizer for accumulating positive data; an adding and subtractingtotalizer for accumulating positive data and negative data said negativedata being accumulated in complementary form; a plurality ofdifferentially settable means for entering data into, reading, orwithdrawing data from said totalizers, a difierential means beingprovided for each denominational element of each totalizer; a separatemeans to engage each/totalizer with the diflerential means for entry,reading, or withdrawal of data; said reading or withdrawing operationsinvolving a plural cycle operation when the data is negative to convertthe complemem tary form into a true negative form; connecting operatingmeans for jointly operating the two totalizer engaging means on datawithdrawing operations; means for separately operating the totalizerengaging means of the adding totalizer; and means for rendering thefirst operating means for the adding totalizer engaging meansinefiective during a certain cycle of a plural cycle operation inreading and withdrawing operations in which the data on the adding andsubtracting totalizer is negative.

7. In a machine ofthe class described, the combination of an add andsubtract totalizer of the class in which a negative balance isrepresented by a complement of the true negative balance; an addtotalizer; a cycling mechanism to control the machine to make aplurality of operations when withdrawing a negative balance from thebalance totalizer to convert the complement of the true negative balanceinto a true negative balance; and means controlled by the cyclingmechanism to control the add totalizer to withdraw a positive total fromthe add totalizer during one of said plurality of operations so that atotal is withdrawn from both of said totalizers during a single negativetotal withdrawing operation.

8. In a machine of the class described, the combination of an add andsubtract totalizer of the class in which a negative balance isrepresented by a complement of the true negative balance; an addtotalizer; a cycling mechanism to control the machine to make aplurality of operations when withdrawing a negative balance from thebalance totalizer to convert the complement of the true'negative balanceinto a true negative balance; a set of differential actuators associatedwith the balance totalizers; an engaging mechanism to engage the balancetotalizer with the associated actuators during certain of said pluralityof operations; a set of diil'erential actuators associated with the addtotalizer; an engaging mechanism to engage the add totalizer with itsassociated set of differential actuators; a main operating means tonormally actuate both engaging means; and connections between'the 35cycling mechanism and the add totalizer engaging means to control theeiiectivity thereof during certain of the operations of said plurality01' operations to withdraw a positive total from the add totalizerduring one oi said plurality of operations so that said positive andsaid negative totals are withdrawn during the same plurality ofoperations.

9. In a machine of the class described, the combination oi an add andsubtract totalizer of the class in which a negative balance isrepresented by a complement of the true negative balance; an addtotalizer; a cycling mechanism to control the machine to make a.plurality of operations when withdrawing a negative balance from thebalance totalizer to convert the'complement oi the true negative balanceinto a true negative balance; a set of differential actuators associatedwith the balance totalizers; an engaging mechanism to engage the balancetotalizer with the associated actuators during certain of said pluralityof operations; a set of diflerential actuators associated with the addtotalizer; an engaging mechanism to engage the add total izer with itsassociated set of diil'erential actuators; a common means connected toboth engaging means to normally actuate both engaging meanssimultaneously; a cam means to disconnect and connect the engaging meansfor the add totalizer from and to the common means; and connectionsoperated by the cycling mechanism to actuate the cam means to disconnectand connect the engaging means from and to the common means duringcertain operations of said plurality of operations to control thewithdrawal of a total from the add totalizer durinii the same pluralityof operations in which a negative total is withdrawn from the add andsubtract totalizer.

HENRY F. LANG.

